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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 16, Iss. 5 — May. 1, 1998
  • pp: 915–

Investigation of 3-D Semivectorial Finite-Difference Beam Propagation Method for Bent Waveguides

Hua Deng, Guang Hai Jin, Joseph Harari, Jean Pierre Vilcot, and Didier Decoster

Journal of Lightwave Technology, Vol. 16, Issue 5, pp. 915- (1998)


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Abstract

A three dimensions of semivectorial finite difference beam propagation method (FD-BPM) in cylindrical coordinates is investigated in order to analyze the optical wave propagation in the bent waveguides with the strong lateral confinement which will keep low radiation loss. The three-dimensional (3-D) semivectorial wave propagation equation is programmed in the quick and unconditionally stable procedure by using the alternating-direction implicit method. This version of FD-BPM could well express the polarization characteristics of modal field near the dielectric interfaces and accurately simulate the wave propagation in bent waveguides even at a very small radius (<100\;\mum). Moreover, it is pointed out that the numerical precision of the algorithm is intensively affected by the propagation loss of bent waveguides along with the propagation step length of beam propagation method.

[IEEE ]

Citation
Hua Deng, Guang Hai Jin, Joseph Harari, Jean Pierre Vilcot, and Didier Decoster, "Investigation of 3-D Semivectorial Finite-Difference Beam Propagation Method for Bent Waveguides," J. Lightwave Technol. 16, 915- (1998)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-16-5-915

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